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Mass Transfer

Mass Transfer
The film penetration model of mass transfer was enunciated by

Fick
Gilliland
Toor and Marchello
Stefan

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Liquid-liquid extraction
Solid-liquid extraction
Multicomponent distillation
Multicomponent absorption with chemical reaction

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Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.53
Re0.33
Re
Re0.83

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Mass Transfer
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.

Greater than
Equal to
Smaller than
Either A, or B ; depends on the type of packing

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Short tube
Falling film
Long tube
Vacuum

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Mass Transfer
Which of the following equipments is not used for gas dispersion?

Spray towers
Agitated vessels
Bubble cap tray towers
Perforated sieve tray towers

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